Improvement in operating the stops of organs



H. R. MOORE.

Gperating the Stops of Organs.

N0.136,664, PatentedMarchH,i873.

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w *1. 1 c J QHXWW UNITED STATES PATENT OFFroE.

HARTWELL B. MOORE, 0F ERIE, PENNSYLVANIA.

lMPROVEMENT lN OPERATING THE STOPS OF ORGAN3.

Specification forming part of Letters Patent No. 136,664, dated March11, 1873.

To all whom it may concern:

Be it known that I, HARTWELL R. Moonn, of Erie, in the county of Erieand State of Pennsylvania, have invented a new and Improved Device forOperatingthe Stops of Organs; and I do hereby declare the following tobe a full, clear, and exact description of the same, reference being hadto the accompanying drawing and to the letters of reference markedthereon, the same forming a part of this specification, and in whichFigure 1 represents such an arrangement of parts as is necessary to showthe workings of my invention.

In the figure, A represents the stop-board of an organ. 0 is one of thestop-knobs; and C is the actuating-rod which connects the knob O withthe series of actuatinglevers. J

is the stop-valve which is to be actuated.

The figure is not intended to represent any particular part of an organ,but is merely a diagram displaying, as before stated, such anarrangement of parts as is necessary to show my invention; and from itit will be seen that my device can be used in an infinite variety offorms.

The actuating-rod O connects at c with the lever. b. This lever bispivoted on the centerpin E, and oscillates horizontally. Beneath this isa lever, B, which is pivoted on the center-pin K and oscillatesperpendicularly. Here we now have motion in two directions, which isnecessary in the operation of almost every stop-valve in an organ. Thelever B raises the valve J by pressing upon the pin I.

The arrangement thus far described is very common 5 but my inventionlies in the manner of communicating power or motion from the lever B tothe lifting-lever B. This is usually accomplished by the lower end ofthe lever 1) coming in immediate contact with the liftinglever B, andmay be called a scraping movement. \Vhile this movement performs thework of lifting the valve, the operator must exercise the same amount offorce and the same amount of time on the knob G to close the valve,because of friction, that he used to open it. Now, to obviate thisdificulty I connect the lever I) with the lever B by a con necting-link,B, which is loosely pivoted to each of the levers by the center-pins Fand G; and I place a stop-pin, H, at the proper place to arrest themovement of the lever I) when the centers of motion E, F, and G are inline. (See dotted lines showing the position of the parts when the valveis raised.) Now, when the operator pulls the knob O to open the requiredstopvalve the various parts are thrown into the position shown by thedotted lines. The lever b has communicated its motion to the lever B bythe connecting-link B, and the stop-pin H has arrested movement at thevery point where the work was accomplished. Now, it will be at once seenthat when the operator desires to shut the valve J it is only necessaryto shove in the knob 0 back just far enough to throw the center-pin Fout of line with E and G, and then the force of the valvespring willclose the valve.

So it will be seen that by my device the return movement of the knob Uis almost auto matic. It is automatic after a certain point has beenreached.

The advantage gained is almost too apparent to need mentioning. Theoperator desires to close one stop and open another as quickly aspossible. By my device all that he has to do is to simply touch thedrawn knob with his hand in its way to the knob representing the stop hedesires to open; for buta slight pressure on the drawn knob throws thecenter-pin F past the sticking-point, and then the valve closesautomatically. Another advantage gained by my device is durability, forthe friction incident to the scraping movement causes great wear andtear.

What I claim as my invention is as follows The combination of theconnecting-link B with the actuating-levers B and I), and the stop-pin Hor its equivalent, for the purposes shown and described.

HABTWELL B. MOORE.

Witnesses:

G. P. DAVIS, J NO. K. HALLOCK.

